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体验新版 GitCode,发现更多精彩内容 >>
提交
87378b0b
编写于
5月 14, 2013
作者:
A
Aaron Patterson
浏览文件
操作
浏览文件
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电子邮件补丁
差异文件
polymorphic around callbacks
上级
e8ddd4f9
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1
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Showing
1 changed file
with
79 addition
and
15 deletion
+79
-15
activesupport/lib/active_support/callbacks.rb
activesupport/lib/active_support/callbacks.rb
+79
-15
未找到文件。
activesupport/lib/active_support/callbacks.rb
浏览文件 @
87378b0b
...
...
@@ -245,6 +245,84 @@ def self.simple(next_callback, user_callback)
}
end
end
class
Around
def
self
.
build
(
next_callback
,
user_callback
,
user_conditions
,
chain_config
)
if
chain_config
.
key?
(
:terminator
)
&&
user_conditions
.
any?
halting_and_conditional
(
next_callback
,
user_callback
,
user_conditions
)
elsif
chain_config
.
key?
:terminator
halting
(
next_callback
,
user_callback
)
elsif
user_conditions
.
any?
conditional
(
next_callback
,
user_callback
,
user_conditions
)
else
simple
(
next_callback
,
user_callback
)
end
end
private
def
self
.
halting_and_conditional
(
next_callback
,
user_callback
,
user_conditions
)
lambda
{
|
env
|
target
=
env
.
target
value
=
env
.
value
halted
=
env
.
halted
if
!
halted
&&
user_conditions
.
all?
{
|
c
|
c
.
call
(
target
,
value
)
}
user_callback
.
call
(
target
,
value
)
{
env
=
next_callback
.
call
env
env
.
value
}
env
else
next_callback
.
call
env
end
}
end
def
self
.
halting
(
next_callback
,
user_callback
)
lambda
{
|
env
|
target
=
env
.
target
value
=
env
.
value
if
!
env
.
halted
user_callback
.
call
(
target
,
value
)
{
env
=
next_callback
.
call
env
env
.
value
}
env
else
next_callback
.
call
env
end
}
end
def
self
.
conditional
(
next_callback
,
user_callback
,
user_conditions
)
lambda
{
|
env
|
target
=
env
.
target
value
=
env
.
value
if
user_conditions
.
all?
{
|
c
|
c
.
call
(
target
,
value
)
}
user_callback
.
call
(
target
,
value
)
{
env
=
next_callback
.
call
env
env
.
value
}
env
else
next_callback
.
call
env
end
}
end
def
self
.
simple
(
next_callback
,
user_callback
)
lambda
{
|
env
|
user_callback
.
call
(
env
.
target
,
env
.
value
)
{
env
=
next_callback
.
call
env
env
.
value
}
env
}
end
end
end
class
Callback
#:nodoc:#
...
...
@@ -319,21 +397,7 @@ def apply(next_callback)
when
:after
Filters
::
After
.
build
(
next_callback
,
user_callback
,
user_conditions
,
chain_config
)
when
:around
lambda
{
|
env
|
target
=
env
.
target
value
=
env
.
value
halted
=
env
.
halted
if
!
halted
&&
user_conditions
.
all?
{
|
c
|
c
.
call
(
target
,
value
)
}
user_callback
.
call
(
target
,
value
)
{
env
=
next_callback
.
call
env
env
.
value
}
env
else
next_callback
.
call
env
end
}
Filters
::
Around
.
build
(
next_callback
,
user_callback
,
user_conditions
,
chain_config
)
end
end
...
...
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